By themselves those numbers don't nessarily mean much. We would also need to know how often shadow copy happened and nothing was corrupted.
On Fri, 10 Jul 2015 at 16:34, Rob Van Dyck <rob.van.d...@gmail.com> wrote: > Hi Thomas and list, > > After investigating another corruption yesterday, we noticed something > strange: a few minutes before the DB was found corrupt there was a Volume > Shadow Copy created for the drive where our H2 files are located. > > Apparantly there are multiple reports on the internet that suspect DB's > can get corrupted during a Volume Shadow copy creation (thus the original > DB gets corrupted, not just the copy), though most are unconfirmed and just > suspicions: > IBM ClearCase VOB: > http://www-01.ibm.com/support/docview.wss?uid=swg21268722 > Firebird: > https://www.mail-archive.com/firebird-support@yahoogroups.com/msg10672.html > > https://groups.yahoo.com/neo/groups/firebird-support/conversations/messages/83269 > C-tree: > http://optiable.com/pclaw-vss-causes-data-loss/ > Access: > > http://www.pcreview.co.uk/threads/volume-shadow-copy-access-corruption.1094172/ > > Could that also possibly lead to a problem in H2? > > I'll include the corruption stacktrace from right after the Volume Shadow > Copy. H2 was trying to do a commit. This was on a Windows 8.1 6.3 amd64 > machine running Java 1.7.0_60 64. > > We have also checked several instances of H2 corruptions (5) for Volume > Shadow copy creations while our application was running: > > - 2 had a Volume Shadow copy taken previously that day > - 1 had it taken 2 days before > - 1 had it taken 2 weeks before > - 1 didn't appear to have had a shadow copy taken while our > application was running > > > Regards, > Rob. > > -- > You received this message because you are subscribed to the Google Groups > "H2 Database" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to h2-database+unsubscr...@googlegroups.com. > To post to this group, send email to h2-database@googlegroups.com. > Visit this group at http://groups.google.com/group/h2-database. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to h2-database+unsubscr...@googlegroups.com. To post to this group, send email to h2-database@googlegroups.com. Visit this group at http://groups.google.com/group/h2-database. For more options, visit https://groups.google.com/d/optout.
